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我厂生产的1-100/8型空气压缩机一、二级气缸的材料分别为HT25-47、HT30-54,气缸内径要求φ800D_3～（+0.150）光洁度为,（?）6及φ480D_3～（0.120）（?）7。 以前在C532立车上加工,精车不易达到要求。我们曾在立车上用油石研磨方法提高光洁度。油石把在刀架上,研磨一件需要4小时。操作不便,亦不易达到图纸要求。现采用如图所示的珩磨头,在 Z310摇臂钻床上进行珩磨。
The material of 1-100 / 8 air compressor of the first and second cylinders produced by our factory are HT25-47 and HT30-54 respectively. The inner diameter of the cylinder requires φ800D_3 ~ (+0.150) smoothness, (?) 6 and φ480D_3 ~ ( 0.120) (?) 7. C532 car in the past on the processing, fine car is not easy to meet the requirements. We used the Whetstone grinding method to improve finish on the car. Whetstone put on the turret, grinding a need 4 hours. Operation inconvenience, it is not easy to meet the requirements of drawings. The honing heads shown here are used for honing on a Z310 radial drilling machine.